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| author | \"Talpey, Thomas\ <Thomas.Talpey@netapp.com> | 2007-09-10 13:49:41 -0400 |
|---|---|---|
| committer | Trond Myklebust <Trond.Myklebust@netapp.com> | 2007-10-09 17:18:00 -0400 |
| commit | 2cf7ff7a37cc149bd59c4f3bad432f686a4619c8 (patch) | |
| tree | 9752290f4a0cb00d10a1fae24db8ef85b85b84e7 /fs/nfs/super.c | |
| parent | c3a57ed7471a17b07844d531534d970b84b69faf (diff) | |
| download | lwn-2cf7ff7a37cc149bd59c4f3bad432f686a4619c8.tar.gz lwn-2cf7ff7a37cc149bd59c4f3bad432f686a4619c8.zip | |
NFS: support RDMA mounts
Adds hooks to the string-based NFS mount to support an "rdma" protocol option.
Signed-off-by: Tom Talpey <tmt@netapp.com>
Signed-off-by: Trond Myklebust <Trond.Myklebust@netapp.com>
Diffstat (limited to 'fs/nfs/super.c')
| -rw-r--r-- | fs/nfs/super.c | 21 |
1 files changed, 19 insertions, 2 deletions
diff --git a/fs/nfs/super.c b/fs/nfs/super.c index 347c36341e53..11ab7ff6e087 100644 --- a/fs/nfs/super.c +++ b/fs/nfs/super.c @@ -34,6 +34,7 @@ #include <linux/sunrpc/stats.h> #include <linux/sunrpc/metrics.h> #include <linux/sunrpc/xprtsock.h> +#include <linux/sunrpc/xprtrdma.h> #include <linux/nfs_fs.h> #include <linux/nfs_mount.h> #include <linux/nfs4_mount.h> @@ -68,7 +69,7 @@ enum { Opt_ac, Opt_noac, Opt_lock, Opt_nolock, Opt_v2, Opt_v3, - Opt_udp, Opt_tcp, + Opt_udp, Opt_tcp, Opt_rdma, Opt_acl, Opt_noacl, Opt_rdirplus, Opt_nordirplus, Opt_sharecache, Opt_nosharecache, @@ -114,6 +115,7 @@ static match_table_t nfs_mount_option_tokens = { { Opt_v3, "v3" }, { Opt_udp, "udp" }, { Opt_tcp, "tcp" }, + { Opt_rdma, "rdma" }, { Opt_acl, "acl" }, { Opt_noacl, "noacl" }, { Opt_rdirplus, "rdirplus" }, @@ -153,7 +155,7 @@ static match_table_t nfs_mount_option_tokens = { }; enum { - Opt_xprt_udp, Opt_xprt_tcp, + Opt_xprt_udp, Opt_xprt_tcp, Opt_xprt_rdma, Opt_xprt_err }; @@ -161,6 +163,7 @@ enum { static match_table_t nfs_xprt_protocol_tokens = { { Opt_xprt_udp, "udp" }, { Opt_xprt_tcp, "tcp" }, + { Opt_xprt_rdma, "rdma" }, { Opt_xprt_err, NULL } }; @@ -668,6 +671,12 @@ static int nfs_parse_mount_options(char *raw, mnt->timeo = 600; mnt->retrans = 2; break; + case Opt_rdma: + mnt->flags |= NFS_MOUNT_TCP; /* for side protocols */ + mnt->nfs_server.protocol = XPRT_TRANSPORT_RDMA; + mnt->timeo = 600; + mnt->retrans = 2; + break; case Opt_acl: mnt->flags &= ~NFS_MOUNT_NOACL; break; @@ -883,6 +892,13 @@ static int nfs_parse_mount_options(char *raw, mnt->timeo = 600; mnt->retrans = 2; break; + case Opt_xprt_rdma: + /* vector side protocols to TCP */ + mnt->flags |= NFS_MOUNT_TCP; + mnt->nfs_server.protocol = XPRT_TRANSPORT_RDMA; + mnt->timeo = 600; + mnt->retrans = 2; + break; default: goto out_unrec_xprt; } @@ -902,6 +918,7 @@ static int nfs_parse_mount_options(char *raw, case Opt_xprt_tcp: mnt->mount_server.protocol = XPRT_TRANSPORT_TCP; break; + case Opt_xprt_rdma: /* not used for side protocols */ default: goto out_unrec_xprt; } |